Linux libcolorer segfault

Discussion:

Ruben Fonseca

2007-07-24 11:00:03 UTC

Hi!

I'm using the colorer binaries and the Java bindings to syntax highlight
some HTML on a SWT StyledText widget.

Everything went ok, but now everytime I need to show code, my java
process crashes wiht a segfault.

I narrowed my problem to the TextColorer.setRegionMapper function. If I
comment this call, everything goes smoothly (i.e., the code is presented
without any syntax highlight). As soon as I uncomment the line, java
crashes.

Here is the usefull part of the backtrace.

glibc detected *** /usr/lib/jvm/java-6-sun-1.6.0.02/bin/java: double
free or corruption (out): 0x093985e8 ***
======= Backtrace: =========
/lib/i686/cmov/libc.so.6[0xb7e4bd55]
/lib/i686/cmov/libc.so.6(cfree+0x90)[0xb7e4f7f0]
/usr/lib/libstdc++.so.6(_ZdlPv+0x21)[0xb3f7feb1]
/usr/lib/libstdc++.so.6(_ZdaPv+0x1d)[0xb3f7ff0d]
/media/ROOT/workspace/WebAppViewer/colorer/os/linux/x86/libnet_sf_colorer.so(_ZN6VectorIP13_jobjectArrayE14ensureCapacityEi+0x7f)[0xb2161f1f]
/media/ROOT/workspace/WebAppViewer/colorer/os/linux/x86/libnet_sf_colorer.so(_ZN6VectorIP13_jobjectArrayE7setSizeEi+0x57)[0xb2161a77]
/media/ROOT/workspace/WebAppViewer/colorer/os/linux/x86/libnet_sf_colorer.so(Java_net_sf_colorer_impl_BaseEditorNative_getLineRegions+0x98)[0xb2160318]

Is this solved in SVN? I tried to build the svn version on linux
(following the INSTALL file) but it fails somewhere in a XSD conversion.

Can you PLEASE help me somehow? I really need this library to work so I
can finnish my project :(

TIA
Ruben

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Ruben Fonseca

2007-07-24 22:29:40 UTC

Permalink

Post by Ruben Fonseca
Hi!
I'm using the colorer binaries and the Java bindings to syntax highlight
some HTML on a SWT StyledText widget.
Everything went ok, but now everytime I need to show code, my java
process crashes wiht a segfault.
I narrowed my problem to the TextColorer.setRegionMapper function. If I
comment this call, everything goes smoothly (i.e., the code is presented
without any syntax highlight). As soon as I uncomment the line, java
crashes.
Here is the usefull part of the backtrace.
glibc detected *** /usr/lib/jvm/java-6-sun-1.6.0.02/bin/java: double
free or corruption (out): 0x093985e8 ***
======= Backtrace: =========
/lib/i686/cmov/libc.so.6[0xb7e4bd55]
/lib/i686/cmov/libc.so.6(cfree+0x90)[0xb7e4f7f0]
/usr/lib/libstdc++.so.6(_ZdlPv+0x21)[0xb3f7feb1]
/usr/lib/libstdc++.so.6(_ZdaPv+0x1d)[0xb3f7ff0d]
/media/ROOT/workspace/WebAppViewer/colorer/os/linux/x86/libnet_sf_colorer.so(_ZN6VectorIP13_jobjectArrayE14ensureCapacityEi+0x7f)[0xb2161f1f]
/media/ROOT/workspace/WebAppViewer/colorer/os/linux/x86/libnet_sf_colorer.so(_ZN6VectorIP13_jobjectArrayE7setSizeEi+0x57)[0xb2161a77]
/media/ROOT/workspace/WebAppViewer/colorer/os/linux/x86/libnet_sf_colorer.so(Java_net_sf_colorer_impl_BaseEditorNative_getLineRegions+0x98)[0xb2160318]
Is this solved in SVN? I tried to build the svn version on linux
(following the INSTALL file) but it fails somewhere in a XSD conversion.

Just to report that (finally) I compiled the SVN version and the problem
persists :( Please dont't make me look to the C++ files to find the
problem. If you need more information about my environment please ask!

Ruben

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Igor Russkih

2007-07-25 03:11:50 UTC

Permalink

Hi Rubens,

Please provide your jvm vendor and version.

Also could you please show up a piece of code, responsible for colorer's
baseEditor configuration? That would be helpful.

Post by Ruben Fonseca

/media/ROOT/workspace/WebAppViewer/colorer/os/linux/x86/libnet_sf_colorer.so(_ZN6VectorIP13_jobjectArrayE14ensureCapacityEi+0x7f)[0xb2161f1f]
/media/ROOT/workspace/WebAppViewer/colorer/os/linux/x86/libnet_sf_colorer.so(_ZN6VectorIP13_jobjectArrayE7setSizeEi+0x57)[0xb2161a77]
/media/ROOT/workspace/WebAppViewer/colorer/os/linux/x86/libnet_sf_colorer.so(Java_net_sf_colorer_impl_BaseEditorNative_getLineRegions+0x98)[0xb2160318]

Post by Ruben Fonseca
Is this solved in SVN? I tried to build the svn version on linux
(following the INSTALL file) but it fails somewhere in a XSD conversion.

Just to report that (finally) I compiled the SVN version and the problem
persists :( Please dont't make me look to the C++ files to find the
problem. If you need more information about my environment please ask!
Ruben
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Ruben Fonseca

2007-07-25 11:10:13 UTC

Permalink

Post by Igor Russkih
Hi Rubens,
Please provide your jvm vendor and version.

Hi Igor :)

I'm running Debian Sid Linux (kernel 2.6.22) on a 32bit dual core
machine. I'm using SUN Java 6 JDK (6.02) and the latest SWT (3.3 Final).

Post by Igor Russkih
Also could you please show up a piece of code, responsible for
colorer's baseEditor configuration? That would be helpful.

Of course :) Here I create the StyledText (SWT):

StyledText codeCanvas = new StyledText(this.codeComposite, SWT.BORDER |
SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL);
codeCanvas.setFont(new Font(this.codeComposite.getDisplay(), "Courier
New", 10, SWT.NORMAL));

Then I use colorer:

// Build the parser
ParserFactory pf = new ParserFactory("colorer/colorer/catalog.xml");
TextColorer textColorer = new TextColorer(pf, new ColorManager());
textColorer.attach(text);
textColorer.setCross(false, false);
textColorer.setRegionMapper("eclipse", false);
textColorer.setPairsPainter(true, TextColorer.HLS_OUTLINE2);
textColorer.chooseFileType("inet.php");

text.setText(buffer.toString());
text.setEditable(false);

The funny thing is that, if I comment the "setRegionMapper" line,
everything works smootly. Do you have any lead?

Thank you! Ruben

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Igor Russkih

2007-07-25 21:57:25 UTC

Permalink

Ruben,

Could you please try to run on your system a standalone test app:
ColorerDemo

You can find it within eclipsecolorer's distribution. you can use
ColorerDemo.bat - but you have to slightly modify it to use under linux.

I have no access to linux box, so I can't check this. But on win32 it works
fine.

The sequence ColorerDemo uses:

ParserFactory pf = new ParserFactory();
textColorer = new TextColorer(pf, new ColorManager());
textColorer.attach(text);
textColorer.chooseFileType("xml.xml");
textColorer.setCross(true, true);
textColorer.setRegionMapper("default", true);

Also please try to move colorer's initialization below your StyledText
initialization (after text.setText() )

This looks much like some problems with order of initialization of
components. I'll be able to check this on linux only on a next week, when I
reach my home pc...

Post by Ruben Fonseca

Post by Igor Russkih
Hi Rubens,
Please provide your jvm vendor and version.

Hi Igor :)
I'm running Debian Sid Linux (kernel 2.6.22) on a 32bit dual core
machine. I'm using SUN Java 6 JDK (6.02) and the latest SWT (3.3 Final).

Post by Igor Russkih
Also could you please show up a piece of code, responsible for
colorer's baseEditor configuration? That would be helpful.

StyledText codeCanvas = new StyledText(this.codeComposite, SWT.BORDER |
SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL);
codeCanvas.setFont(new Font(this.codeComposite.getDisplay(), "Courier
New", 10, SWT.NORMAL));
// Build the parser
ParserFactory pf = new ParserFactory("colorer/colorer/catalog.xml");
TextColorer textColorer = new TextColorer(pf, new ColorManager());
textColorer.attach(text);
textColorer.setCross(false, false);
textColorer.setRegionMapper("eclipse", false);
textColorer.setPairsPainter(true, TextColorer.HLS_OUTLINE2);
textColorer.chooseFileType("inet.php");
text.setText(buffer.toString());
text.setEditable(false);
The funny thing is that, if I comment the "setRegionMapper" line,
everything works smootly. Do you have any lead?
Thank you! Ruben
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Ruben Fonseca

2007-08-13 13:17:59 UTC

Permalink

Post by Igor Russkih
Ruben,
ColorerDemo

Yup that always run fine.

Post by Igor Russkih
You can find it within eclipsecolorer's distribution. you can use
ColorerDemo.bat - but you have to slightly modify it to use under linux.
I have no access to linux box, so I can't check this. But on win32 it
works fine.
ParserFactory pf = new ParserFactory();
textColorer = new TextColorer(pf, new ColorManager());
textColorer.attach(text);
textColorer.chooseFileType("xml.xml");
textColorer.setCross(true, true);
textColorer.setRegionMapper("default", true);
Also please try to move colorer's initialization below your StyledText
initialization (after text.setText() )
This looks much like some problems with order of initialization of
components. I'll be able to check this on linux only on a next week,
when I reach my home pc...

Well. I really don't know what solved the problem. But I did *a lot* of
refactoring of my application, isolating the GUI code from the rest,
taking care of thread gui access and stuff like that, and the problem
never appeared again.

So I thing you must be right, it probably was a initialization order or
something like that.

Anyway, thank you for your support :)

Ruben

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